Toothed harrow



C. ANDEEN;

TOOTHED HARROW.

AnPucATvlQN FILED MAY29,1920,

Patented Dee. 12, 19221..

2 SHEETS-SHEET 1 C. ANDEEN.

TOOTHED HARROW.y

APPLICATION FILED MAY29,1920,

Patented Dec. 12, 1922.

2 SHEETS-SHEET 2.

Patented l2, i922.

CARL ANDEEN, OF HADDM, CONNECTICUT.

TOOTHED Application :filed May 29,

of Middlesex, and State of Connecticut,

have invented certain new and useful lmprovements in Toothed Harrows, which im provements are fully set forth in the following specification. y

This invention relates to improvements in soil-agitating implements yof that class commonly known as toothed harrows; and its object isi to provide a toothed harrow which shall be comparatively inexpensive as regards its construction; durable, eilicient and reliable in practical service; convenient in its application to practical purposes; and which shall possess certain welldelined advantages over prior analogous constructions.

The invention consists in the combinations, details and parts, to be hereinafter more particularly referred to and set forth in the claims hereto appended, and whereby the attainment of the foregoing object is rendered practicable.

The invention is clearly illustrated in the accompanying drawings, wherein;

Fig. l is a plan viewl of a toothed harrow embodying my said improvements, the handelevers shown in cross-section.

Fig. 2 is a side elevation of same.

Fig. 3 is a central, vertical, longitudinal section, as along the dotted line 3-3 of Fig. 1. i

Fig 4 is a central, vertical, transverse section, as along the dotted line 1 -i of Fig. l.

Fig. 5 is an enlarged detail sectional View, the section being taken vertically and transversely, as along the dot-ted line 3eof Fig. 2.

Fig. 6 is a View similar to Fig. 5, the section being taken as along the dotted line 6 6 of Fig. 2. A

Having reference to the accompanying drawings, wherein similar reference-numerals denote like parts throughout the several views, l, in carrying out my present invention, make use of a sectional frame which consists in part of opposite side-members 2, 2', and a rear, transverse tie-member 7, the side-members having a general convergence forwardly and affording close-lying, advance terminals 7', 8, respectively, said several frame members being duly connected,

HARROUV.

1920. Serial N0. 385,141. v

and in a manner to be hereinafter more fully explained. i I

8 9 are connected medial members, complementary inthe main to the side-members aforenamed', one theieof'ha-ving a forward extension 9 whose advance end-portion is clamped between the terminals 7, 8; and l0, 10 are minor, intermediate tie-members interposed obliquely between and connecting the frame members 2, 8', and ll, 1l are like minor, intermediate tie-members interposed obliquely between and connecting the frame, members 9, 2.

The Vseveral frame members aforenamed are formed from flat stock, as iron or steel, and the general frame formed thereby when assembled, is fitted with a, plurality of teeth l2, here shown as being firmly clamped, one at each upper end-portion thereof between each of the opposite terminals of each of the minor, intermediate tie-members aforenamed, and the frame members connected thereby, said teethl projecting, by preference, each downwardly and forwardly from its point of connection with said general frame, and being formed from any suitable material, as iron or steel.

To preserve the symmetry of the vdisposition of the several vteeth made use of, and to further enhance the eticiency of the harrow in practical service, an additional tooth l2 is `best provided, the 'same' being clamped at its upper end-portion between the medial'members 8, 9, at the advance, converging end-portions thereof; and the clamping in position of all of the teeth made use of, may be eii'ected by means of any appropriate elen'ient-s, bolts and nuts employed V substantially as illustratedin the accompanying drawings. i

To facilitate the transportation of the harrow from point to point and incidentally the adjustmentofits teeth relatively to the soil thereunder, l provide Athe same with a front carrying-wheel l2and a pairl of opposite, rear. carryingwheels 13, 13, 4and I Acontemplate that each ofV said carryingwheels shall` be adjustablerelatively to the frame of the harrow, and in such a manner as to enable the useroflthe harrow to readily so adjust its framey as to cause the teeth carriedy thereby to enter to variant depths the soil thereunder, for soil-agitating purposes, or to readily so reversely adjust said frame as to cause the teeth carried thereby to be withdrawn from, and well elevated above, the soil thereunder, the latter adjustment of the parts being resorted to When transportation of the harrovv from point to point, as above mentioned, is desired.

Accordingly, l provide a yoke 14,-, here shown as having the general form of the letter U, straddling the connected terminals 7 8, and operating vertically inopposit'e guides 1 15bolted to said connected terminals at the opposite sides 'thereof,andthe carryingivheel 12 being best svviveled thereto, latfits lower end, lafter ythe manne'rfofa'caster, and through'theinediinn of an appropriate stock 15.

Naturally,-the forward: portion of the' liarrow may bepermitt'edto descend lrelatively tothe yyoke le to cause the teeth carried therebyl to engage or'enter the-soil thereunder, or may be eiev'ated `-relatively to said yoke t'o xvithdrawsueh teeth from the: soil thereunder, such adjustments offfthe `parts now under consideration beingv controlled, 'in the one instance and manna ly effected by the user lin the other5 instance, through the medium, as here shoWn,of 'a' suitab'lehandlever 16, fulcrunied at 16 and engaging, pivotally by preference, at itsadvance endthe yoke 14 atthe'fupper extremityY thereof.

rihe'hand-lever 16 is provided Iwith 4the usual; dog 17, disposed for co-operationvith the LstomarytoothedV sector 17, the latter positioned at or :between the terminals'7y8, and held in place by suitable bolts'and'nuts, substantially as shown.V

' he Withdravval of Ythe -d'og 17 Jvfrom engagement Withlany Atoothofthe sector 17 to release the forward portion of the harrovv for 'adjustmentdownwardly yor upwardly `relatively `tor 'the yoke 14,'is facilitated through-the "medium ofa suitable 'finger-1 piece 18,'operatingon'a pivot 18, inthe usual-manner I rfhe dog aforenamed is"hereshownas being formed-on Aa suitable slide 19, Working on the hand-lever 16, and between Which'an d said finger-'piece there is interposedv a con- "nel-tior 19, said slide thus connected to the 'ringer-piece "being urged yieldingly dovvnward along the hand-lever by means yof a suitable spring 20, and so as to cause the dog' 17 to lochingly'engage some- 'one fof the teeth of 'the sector 17 whereby the forward portion of the harrow is held-under variant adjustments relatively vto'the'yoke 14C, as hereinbeforer alluded to,'the hand-'lever 16 being properly manipulated to this end.

' A13/the opposite `rear corner-'portions ofthe Igeneral frame of the harrovv lthere are mounted, axially alined, roch-shafts, 21,21',

provided, respectively, With eccentricr spindles 22, 22', on which rotate, r'es'pectively,the rear carrying-Wheels 13, 13,`said shafts being mounted 'to rock in suitable hearings 23, 23', 2e', 24, held 1n place, as hy clips 25, 25', as, 2e.

Hence, the carrying-Wheels 13, 13 being mounted eccentrioally to the shaft With which the same co-operates, upon either of said shafts being duly rocked the corner-portion of the general frame of the harroW wl'i'ereatsaid shaft is located Will be raised or lowered, for a corresponding adjustment of theteeth ythereat, relatively, to the soil thereunder, as hereinbefore explained in connection with the yoke 14,-an`daccording to the direction in which such shaftshall be rocked, as will hereadily understood.

vTo Vfacilitate therockingof 4the shafts 2l, 2l', as and forthe purposeaboveiinentioned, hand-levers 16 areiixedly mounted thereon, preferably 'at the inner fends thereof,frespectively, each of said hand-levers having` associated therewith-1a"slideY 19, having a dog 17 formed thereon, Va fingerlpiece 18, connection 20, spring 20 for cooperation in I'a manner sini'ilarto ythateX- plained in connection y#with 'the Vhand-lever provided for Acti-operation Wit-h the vlyoke 14C, save that instead of either of the hand-levers provided for A3o-Operation Iwith the rochshafts-fof the harman/operating vonlawfulcr'uin, as lfprovided for'the front handlever -1f6, each is ffti-Xedly mounted on vthe shaft With which it co-operatesand ishence rockable as a un'it there/Witlnfa toothed sector 17 similar to 17 'being `tixedlymounted, as through the medium ofsu-itable bolts 'and nuts as shown, alongside 'of each of the hand-levers lastreferredto for lock-ing cooperation With the dog-'afforded 'thereby,fas

and for the 4purpose-hereinlciefore explained.

it Will'beseenthat'with the parts assembled -as herein `conteml'ala-te'd, the front por tion of the general frame Linay"bereadily raised or lowered, together with the :teeth carried'more immediately thereby, and that either rear corner-portionfof the :general frame, together 'with the teeth more f'i'm'niediately carried thereby, may be correspondingly 'r ed or lowered, all at the WillI of the user; 'x'vhile theentire general frame-of the hai-row, including the teeth carried thereby, may be uniformly lowered toca'use the teeth of' the lhafrrow 'to"engage orfvariant'ly enter the soil thereunder, or 'uniformly raised to withdraw the teeth oftheharrow from the soii'there'under, ,and particularly whenL it 'is desired-to transportlthe the harrovv on its own carrying-'Wheels from one Ipoint toanotherf r lt is 'bestfthat more or less of ythe'frarne members be arched edgevvisetupvvardly in advance of the teeth, respectively, of-the Vharrow, substantially as shovvn,= to minimize any tendency to' clogging `of thev `teeth and 'naturally the'harrow is fittedf at 'its forward portion with a suitable clevis 27, for a purpose clearly apparent.

The harrow may be produced at a moderate cost, is strong, durableand markedly lll) efficient as an implement for soil-agitating purposes; and it will be seen that the same is in other ways well adapted for the purposes for which it is intended. It will be further seen that the same may be modified to a considerable extent without' material departure being made from the spirit and principle of my invention, as set forth in and coming within the scope of the claims hereto appended.

Having thus described my invention, I claim:

l. A harrow comprising a general frame consisting of opposite, forwardly-converging sidednembers; similar medial members; and minor tie-members, the latter disposed intermediate the respective side-members and the medial members associated, respectively, therewith, and firmly connecting the same, said frame fitted with a plurality of teeth clamped, respectively, between each of the tie-members and the side-member and medial member connected thereby.

2. A harrow comprising` a general frame consisting of opposite, forwardly-converging side-members; similar medial members, and minor tie-members, the latter disposed intermediate the respective side-members and the medial members associated, respectively, therewith and iirmly connectingthe same, said frame fitted with a plurality of teeth clamped, respectively, between each of the tie-members and the side-member and medial member connected thereby, and each frame member projecting forwardly beyond any of the teeth being arched upwardly immediately in advance thereof.

CARL ANDEEN. 

